Apparatus for winding condensers



April 13, 1954 L. o. LARsEN APPARATUS FOR WINDING CONDENSERS Filed May 28, 1952 3 Sheets-Sheet l IN VEN TOR.

April 13, 1954 L O" LARSEN APPARATUS FOR WINDING CONDENSQRS 3 Sheets-Sheet 2 Filed May 28, 1952 ZQZ BY A ril 13, 1954 o. LARSEN v 2,675,188

' APPARATUS FOR WINDING IcoNnENsERs Filed May 28, 1952 I 3 Sheets-Sheet 3 fin llm {Q @g & Ill! a 4 l d I & J 1 MIT Q k r, I 1 f a Re 5 #2 I r I l lQZarsezz I II Patented Apr. 13, 1954 Leonard 0. Larsen,

New York, N. Y4,

Indianapolis, Ii'idl, assignor to Western Electric Company,

a' corporation of New York Incorporated;

Application May, 28, 1952;,SeriaLNo. 290,495 Claims: (Cl. 242-'56 This invention relates toaparatus for winding condensers, and more particularly to apparatus for'windingstrips into condensers'with the ends ofthe strips offset one from another.

In the manufacture of condensers together a plurality of paper metallized ononesideof each, the strips sometimes are rolled together into a roll and then are cut off together; and a new roll is started with the newly formed ends of the strips. However, ithas-been found to be advantageous to offset the starting'ends of the strips to prevent shorts or low insulation resistance paths therebetween. In the past, there has been no apparatus for satisfactorily offsetting the ends of the flexible strips prior to starting the winding of a condenser; and the offsetting-has been accomplished with considerable difficulty.

by rolling An object of the invention is to provide newand improved apparatus for winding'condensers.

Another object of apparatus for winding strips into condensers with theends of the strips offsetone' from another.

An apparatusillustrating certain features of" includemeans for: winding a a plurality. of strips, means-for guiding these sheets through the winding means,

the invention may condenser from a another condenser.

A complete understandinglof the invention may be obtainedfrom the tion' of-an apparatus following detailed descripforming a specific 'embodi' ment thereof, when read in conjunctionawith the Fig. 2 is an enlarged; partially sectional view of a portion ofthe apparatuswshownin' Fig: 1;

Fig. 3 is an enlarged, partially sectional view illustrate the structurethereof; and

Fi 4. is an enlarged, vertical sectiontakenfi along line 44 of Fig. 3.

Referring now in detail tothe drawings, there is shown in Fig, 1 a machine for winding strips faces into elongate l4 and I5 (Fig.2).

supply. roll I i, betweena guide roll (9 and a clamp l9 to a guide roll The sheet ll travels from a supply roll (Fig-i 1) very flexible strips of" the invention is to provide the apparatus; shown in Fig; 1 with portions thereof broken away to more cle'arly overa guideroll Ziifmounted on walls" 2-1 and; between a roll 29 (Fig. 2) and a braking shoe 30and. overthe roll 20 between the roll' 20 and the sheet I0. The

arbors l4 and I5 are mounted rotatably on ro'- tatable frames 3! and 32 (Fig. 3), andslidable lengthwise in the frames 3| and 32. A cutting bar. 33 also is carried by the frames 3| and 32 in the center: of rotationthereof.

The frame 31 r 4) driven by a pinion 36 rotates boththearbors it and I 55 through gears 3'l and 38 splined to the When thestrips l0 and II have been wound into a roll ofalmost suitablecapacitance on the uppermost one of the arbors [land I 5, the are actuated manually. to revolve the" arbors.

frames. arbors l4 and i5 .aroundtheaxis of the bar 33 in a counterclockwise direction, as viewed in Fig. 2, to reverse the positions thereof. There is provideda manually operable cutter 39 forcutting the strips iii and.

A piston flilialways connected to the lower one of the. arbors I4 and l5'by. a. slottedchuck M (Fig. 3) may be actuated "to pull the lower arbor outof. the condenser roll wound thereon. The piston 40 also may be arbor back to its original position. The chuck permits lateral movement of the: arbor engaged thereby but prevents longitudinal movement of that arbor relative to the chuck. Simi-- larly, a leaf spring retainer 43 keeps the'upper arbor seated in the frame 32 While permitting the arbors to be moved laterally into and out of "en gagement with the retainer. Tuckers 44 and 45 are provided'for folding the ends of the strips partially "around the upper one of thearbors' l4 may be swung.

46 the strips against the upper and 1'5, and a cushion roll manually to press arbor;

After thestrips It and 'i mounted rotatably on a post '53 to a position per mittingcompression springs 54 to'move a presser bar 55 tightly into engagement with the strip I0. The post 53 is mounted slidably in a bushing 58 mounted ina bore 5'! in a U-shaped frame 58 plate 6|. The bar are also:

may be revolved manually in a counterclockwisedirection, as viewed-.inFig,

H with the cutting bar 33.-

aotuated 'to move the lower I have been severed, a handle 5! may be swung inv a counterclockwise direction; asviewed in Fig. 2, to turn a cam'52" proj ects through" a 60 and supports a cam elongated slot 13 therecured to the wall 28. This pulls the portion of 1 l8 upwardly to offset Ill from that of the strip "I l.

the strip l below the roll the end of the strip When the camming platelZ is moved downwardly by the springs 5 it presses-against a leaf spring 30 to turn a shaft 8! in a clockwise di rection, as viewed in Fig. 2, to move the braking shoe 30 against the strip ll positioned below the roll 29. This prevents retraction of the strip H with the strip is, and as the clamp l9 and the roll 18 are revolved to retract the strip H), the cam plate 72 is revolved, an' arcuate groove 6-2 inithe cam plate sliding along leaf spring 80 to maintain the pressure on the spring 85. I

Operation Assumingthat a condenser roll has just been completed on the arbor IS, the arbor I5 is in the lowermost position and'rotation of the arbors I4 and l5 has been stopped, the cutter 39 is actuated manuall to engage the portions of the strips l ii'a'nd H at a corner of the cutting bar 33 and severboth strips. Ifhe handle 5! then is moved in a clockwise direction, as viewedin Fig. 2, to hold 4 the frame 58 against swing the ca presser bar 55 toits' pos1tion'permitting the springs 55 to force the presser bar 55 so as to clamp the" strip Hi to the roll: i8, The handle 51 then is actuated to rotate the clamp 69 and the roll l8 about the shaft 69, in a' clockwise direction, when movement is limited by the'adjustment screw 15. This pulls the portion of the strip below the roll l8 upwardly to offset the end of the strip H] from that of the the camrning plat-ell is moved strip '1 I. When downwardly by the springs 55, it presses against the leaf spring 88 to turn the shaft 3! in aclockwise direction to move the braking shoe against the portion of the strip ll roll 29. retraction of the strip H as the presser bar and the roll it are revolved to' retract the strip it}, the cam plate 12 maint'ainsflthe pressure on the braking shoe 3? After the endof the strip ii! has been lifted upwith respect to the end of the strip II, the cushion roll 45 is operated to clamp both strips against the arbor and the folder M is actuated to fold the strips partially around the arbor l4 and the ends of the strips are secured to the'arsome by operating the tucker 45. The handle 5!.then is actuated to unclamp the strip. 10 and the brake 39, the clamp i8 is permitted to drop by gravity to its normal position against the 'pin 14, and the machine is started to rotate the arbor l lto form a condenser roll thereon with the inner ends of the :condenser strips offset from one another.

' It is to be understood that the above-described arrangements are simply illustrative of the principles of the invention. Numerous other arrangements may be readily devised by those with the strip 10, and

shillediin the art which will embody the prina stop pin 14 mounted onthe a bead 83 of thethe' stop pin 75 and 52 from its position retracting the v positioned below the This clamping of the strip H prevents the guide rollsand turnin ciples of the invention and fall within the spirit and scope thereof.

What is claimed is:

l. A condenser winding machine, which comprises supply means for supporting a pair of supply rolls of metallized tissue in positions spaced from one another, an arbor, means for rotating the arbor to wind metallized tissue from the supply rolls onto the arbor, a plurality of guide rolls for guiding one of the metallized tissues to the arbor, a plurality of guide rolls for guiding the other metallized tissue to the arbor, means for-simultaneouslysevering the two metallized tissues at the same points therealong, means for clamping one of-the metallized tissues to one of the guide roll in a tissue retracting direction, whereby the tissue passing thereover is retracted with respect to the other tissue, and means for preventing retraction of the last-mentioned metallized tissue while the other metallized tissue is being retracted. Y

2. A condenser winding machine, which comprises supply means for supporting 'a pair of supply rolls of metallized tissue strips in positions spaced from one another, an arbor, means for rotating the arbor to wind the strips from the supply rolls onto the arbor, a guide roll for the strips to the arbor, a guideguiding one of roll guiding the other strip to the arbor, means for severing the strips at points therealong equidistant from the arbor, meansfor clamping one ofthe strips to the guide roll,

recticn, whereby that strip passing thereover is retracted with respect to the other-strip, and means for preventing retraction of the last-mentioned strip while the other strip is being retracted. I i 1 3'. A condenser winding machine, which comprises an arbor, means for rotating the arbor to wind an inner strip and an outer strip together onto the arbor, a guideroll' for guiding the outer strip as it is advanced to the arbor, a second guide roll for guiding the other strip to the arbor, means for simultaneously severing the strips at points equidistant from the arbor,

a U-shaped frame pivotally mounted'on the first guide roll, a clamp carried by the frame, means outer strip engaging the first guide roll to pre-" vent movement of the outer strip relative to the first guide roll, whereby pivotal movement of the holding the second "guide roll against rotation.

4. A condenser winding machine, which comprises an aiibor for winding an outer strip and an inner strip thereon, a guide roll mounted in a position such as to guide the outer strip toward the arbor, a clamp mounted adjacent to the guide roll, means for moving the clamp toward the guide roll and revolving the clamp about'the axis of rotation of the guide roll, a second guide roll for guiding the inner strip toward the arbor, a second clamp movable toward the second guide roll, means operable by the clamp-moving means when the first clamp is moved to operable position for pressing the sec- 0nd clamp against the portion of the inner strip engaging the second guide roll, and means for 5. Acondenser winding machine, which comguiding it and turning that guide roll in a strip-retracting difor forcing the clamp against the portion of the prises an arbor for winding an outer strip and an inner strip thereon, a guide roll, a shaft mounting the guide roll in a position such as to guide the outer strip toward the arbor, a U- shaped frame mounted pivotally on the shaft in a position bracketing the guide roll, a clamp mounted slida'bly on the arms of the frame, means urging the clamp toward the guide roll, manually operable means for rendering the clamp inoperative, a second guide roll for guiding the inner strip toward the arbor, a second clamp movable toward the second guide roll, an arcuate cam carried by the first clamp, resilient means operable by the cam when the first clamp References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 2,340,340 Nordberg Feb. 1, 1944 2,506,314 Nordberg May 2, 1950 

